The iPad Pro and Apple Pencil have completely changed how the cycling clothing company Rapha designs its fashionable road gear.

In a new short film, Apple goes behind-the-scenes with Rapha’s head of design, Alex Valdman, discussing everything from his approach to design, creative process, and how he uses the iPad Pro to get work done.

This Red Bull-sponsored film of Tyler Fernengel, an up and coming BMX star, shredding through the creepy post-apocalyptic remains of Detroit’s Silverdome stadium is both amazing to watch and poignant at the same time.

The stadium represents with a gravelly-voiced narration, as well.

“I remember it like yesterday,” it says. “The smell of fresh paint. The stands overflowing; a colosseum for the modern age. Forty years ago, I stood for Detroit.”

SAN FRANCISCO — Sometimes even a great idea falls flat at first. Take Pump-Hub, a self-inflating bike tire gizmo. It was rolling along at trade shows and getting lots of good press before the financial crisis of 2008 sidelined the project.

Now its creator, engineer Kevin Manning, is getting back on track with a new team behind him and plans to expand his original idea — an automatic, adjustable, tire-inflation system housed in the hub of a bike wheel.

For cyclists, the Pump-Hub means no remembering to check the tire pressure or pack a pump, no fiddling around with the valve and then racing to put the cap back on before the air wheezes out and your aching arms have to start all over again. It inflates the tires to the proper pressure while you ride, making a gentle clickety-clack sound reminiscent of spoke cards from childhood days. When the tire hits the designated pressure, the fluttering sounds stop. If you get a flat, just upend your bike and spin the wheel until pressure is restored.

“It’s like how using a Macintosh is easier than using a command-line interface,” Manning says, turning his Gunnar bike upside down on the Embarcadero to show me how the Pump-Hub works. If you really boil down all the technology behind his invention, he adds, the main advantage basically ends up being “it’s easier.”

No one but actual, honest-to-God bicycle messengers had the authority to wield a Timbuk2 messenger bag. If you were an iron-assed hard case living life on a bike, you’d probably earned the right; though you might still have found yourself the target of diluted messenger disgust.

That was the pervading vibe 15 years ago when I bought my first Timbuk2 bag, a Bolo (back then, each size had a name; the Bolo was the large version). Make no mistake, these were Messenger Bags: simple, voluminous, virtually indestructible black holes, able to swallow an inordinate amount of awkwardly dimensioned deliverables, specially stabilized for use on the bike exclusively. The only grudging nods to civility were a couple of pockets sown onto the outside of the bag and an optional padded shoulder strap.

And apart from a few minor changes, it’s stayed that way. Like the coelacanth, the Classic Messenger has remained a living fossil, unchanged, while other Timbuk2 species have evolved and developed around it. Until now.